White Gumpaste Bow Cake Decoration - Add a touch of elegance to your creation by including this gum paste white bow. Dimensions: 6 x 2 x 1 inches. Gumpaste is technically edible but mostly used as decorations on cakes, etc. You can easily color the bow with an edible airbrush system, aeresol food spray color or food-grade petal or luster dusts.